﻿#region Copyright (c) 2003 - 2008, Andreas Mueller
/////////////////////////////////////////////////////////////////////////////////////////
// 
// Copyright (c) 2003 - 2008, Andreas Mueller.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// Contributors:
//    Andreas Mueller - initial API and implementation
//
// 
// This software is derived from software bearing the following
// restrictions:
// 
// Copyright (c) 1994
// Hewlett-Packard Company
// 
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.  Hewlett-Packard Company makes no
// representations about the suitability of this software for any
// purpose.  It is provided "as is" without express or implied warranty.
// 
// 
// Copyright (c) 1996,1997
// Silicon Graphics Computer Systems, Inc.
// 
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.  Silicon Graphics makes no
// representations about the suitability of this software for any
// purpose.  It is provided "as is" without express or implied warranty.
// 
// 
// (C) Copyright Nicolai M. Josuttis 1999.
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
// 
/////////////////////////////////////////////////////////////////////////////////////////
#endregion



using System.IO;

namespace NStl.NUnit.Support
{
    /// <summary>
    /// A stream object that can be used to write into a <see cref="string"/>.
    /// use the streams <see cref="ToString()"/> method to obtain the string.
    /// </summary>
    public class StringStream : Stream
    {
        private readonly Stream innerStream = new MemoryStream();
        public override bool CanRead
        {
            get { return innerStream.CanRead; }
        }
        protected override void Dispose(bool disposing)
        {
            innerStream.Dispose();
            base.Dispose(disposing);
        }
        public override string ToString()
        {
            long pos = innerStream.Position;
            innerStream.Position = 0;
            StreamReader r = new StreamReader(innerStream);
            string s = r.ReadToEnd();
            innerStream.Position = pos;

            return s;
        }
        public override bool CanSeek
        {
            get { return innerStream.CanSeek; }
        }

        public override bool CanWrite
        {
            get { return innerStream.CanWrite; }
        }

        public override void Flush()
        {
            innerStream.Flush();
        }

        public override long Length
        {
            get { return innerStream.Length; }
        }

        public override long Position
        {
            get{ return innerStream.Position; }
            set{ innerStream.Position = value;}
        }

        public override int Read(byte[] buffer, int offset, int count)
        {
            return innerStream.Read(buffer, offset, count);
        }

        public override long Seek(long offset, SeekOrigin origin)
        {
            return innerStream.Seek(offset, origin);
        }

        public override void SetLength(long value)
        {
            innerStream.SetLength(value);
        }

        public override void Write(byte[] buffer, int offset, int count)
        {
            innerStream.Write(buffer, offset, count);
        }
    }
}
